Paper · 1984 · Weed Research

Agronomic effects from the control of Agropyron repens in barley by pre‐harvest application of glyphosate

B. W. SHEPPARD; M. C. RICHARDS; J. A. PASCAL

9
claims
19
verbatim quotes
12
citations
3
research areas
—
Not open access

Abstract

Summary Pre‐harvest application of glyphosate in barley at 1·44 and 0·72 kg ha −1 was compared with post‐harvest application at 1·44 kg ha −1 at six sites in south‐east Scotland, three sprayed in 1980 and three in 1981. Both levels of pre‐harvest application gave consistent 95–99% control of A. repens compared with 0–76% control from post‐harvest application. Yields of crops grown in 1981 were significantly increased after all the 1980 pre‐harvest treatments and after one post‐harvest treatment. No significant depressions in grain germination were recorded from the lower rate of pre‐harvest application but one significant depression was recorded from the higher rate. Combine harvesting throughput at a given grain loss level was significantly improved by pre‐harvest application and moisture content of grain at harvest was significantly reduced by up to 2·5%. Wheeling losses from pre‐harvest spraying ranged from 1 to 5%. Crop yield increases in the year after spraying compensated for herbicide and application costs plus any yield losses through tractor wheelings.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pre-harvest glyphosate gave 95–99% control of A. repens in barley, compared with 0–76% control after post-harvest application.

Treatment
pre‐harvest application of glyphosatee0
Interactor
A. repensElymus repense1weed
Outcome
control of A. repense1
Direction
higherinferrede1
Value
95–99%e1
Qualifier
0–76% control from post‐harvest applicatione1
Comparator
post‐harvest application at 1·44 kg ha −1e0
Setting
six sites in south‐east Scotlande0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Elymus repens
Elymus repens · InteractorSpedona at French Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e0

“Pre‐harvest application of glyphosate in barley at 1·44 and 0·72 kg ha −1 was compared with post‐harvest application at 1·44 kg ha −1 at six sites in south‐east Scotland, three sprayed in 1980 and three in 1981”

✓ located verbatim in the source · abstract, characters 8–218 · show in text ↑
e1

“Both levels of pre‐harvest application gave consistent 95–99% control of A. repens compared with 0–76% control from post‐harvest application”

✓ located verbatim in the source · abstract, characters 220–360 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Crop yields in 1981 were significantly increased after all the 1980 pre-harvest treatments.

Treatment
pre‐harvest treatmentse2
Outcome
Yields of crops grown in 1981e2
Direction
increasede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e2

“Yields of crops grown in 1981 were significantly increased after all the 1980 pre‐harvest treatments and after one post‐harvest treatment”

✓ located verbatim in the source · abstract, characters 362–499 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Crop yields in 1981 were significantly increased after one post-harvest treatment in 1980.

Treatment
post‐harvest treatmente2
Outcome
Yields of crops grown in 1981e2
Direction
increasede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e2

“Yields of crops grown in 1981 were significantly increased after all the 1980 pre‐harvest treatments and after one post‐harvest treatment”

✓ located verbatim in the source · abstract, characters 362–499 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The lower pre-harvest rate caused no significant depression in grain germination.

Treatment
lower rate of pre‐harvest applicatione3
Outcome
grain germinatione3
Direction
no_changeinferrede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e3

“No significant depressions in grain germination were recorded from the lower rate of pre‐harvest application but one significant depression was recorded from the higher rate”

✓ located verbatim in the source · abstract, characters 501–674 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The higher pre-harvest rate caused a significant depression in grain germination.

Treatment
higher ratee3
Outcome
grain germinatione3
Direction
decreaseinferrede3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e3

“No significant depressions in grain germination were recorded from the lower rate of pre‐harvest application but one significant depression was recorded from the higher rate”

✓ located verbatim in the source · abstract, characters 501–674 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pre-harvest application significantly improved combine harvesting throughput at a given grain loss level.

Treatment
pre‐harvest applicatione4
Outcome
Combine harvesting throughput at a given grain loss levele4
Direction
improvede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e4

“Combine harvesting throughput at a given grain loss level was significantly improved by pre‐harvest application and moisture content of grain at harvest was significantly reduced by up to 2·5%”

✓ located verbatim in the source · abstract, characters 676–868 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Pre-harvest application significantly reduced grain moisture content at harvest by up to 2·5%.

Treatment
pre‐harvest applicatione4
Outcome
moisture content of grain at harveste4
Direction
reducede4
Value
up to 2·5%e4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e4

“Combine harvesting throughput at a given grain loss level was significantly improved by pre‐harvest application and moisture content of grain at harvest was significantly reduced by up to 2·5%”

✓ located verbatim in the source · abstract, characters 676–868 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Wheeling losses from pre-harvest spraying ranged from 1 to 5%.

Outcome
Wheeling lossese5
Value
1 to 5%e5
Qualifier
from pre‐harvest sprayinge5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e5

“Wheeling losses from pre‐harvest spraying ranged from 1 to 5%”

✓ located verbatim in the source · abstract, characters 870–931 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Crop yield increases in the year after spraying compensated for herbicide and application costs plus any yield losses from tractor wheelings.

Outcome
Crop yield increases in the year after sprayinge6
Qualifier
compensated for herbicide and application costs plus any yield losses through tractor wheelingse6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“in barley”

✓ located verbatim in the source · title, characters 55–64 · show in text ↑
e6

“Crop yield increases in the year after spraying compensated for herbicide and application costs plus any yield losses through tractor wheelings”

✓ located verbatim in the source · abstract, characters 933–1076 · show in text ↑

glyphosate · Elymus repens · Hordeum vulgare (barley)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.